Feed mechanism.



UNITED STATES SAMUEL E. DIESCHER, S? PITTSEURGH, fik NSYLVANXA.

FEED MECHANISM.

Application filed June 10. i912,

To @ZZ whom 'I 'may .f miner/'n Be it known that l, SAMUEL E. Dmscriurz; residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania1 :i -citizen of the United States, have inventedor discovered certain new and useful Improvements in Feed lvlechunism1 of wliich iniprovernents the following is a st'ieeilieution.

The iniv'entiondesc'riloed herein relaties to certain improvements in rollers for feeding sheets.

lVhile my improved rollers are especially adapted for use in removing sheets from n coating bath they are also adapted ior other uses.

The invention is hereinafter more fully described and claimed.

ln the zirconipunying driiwing forming :1 purr of this eziwcilieutifin., Figur-3 l a ser.:- tioual elevation of a tinning apparatus having my improved feed rollers applied therei to; Fig. 2 is a side elevation of one of such `rollers one of the elements being shown;

Fig. 3 is an enit View of'my improved roll shrnving the ring hanging free; Fig. l illustrates u modification oli' my improvement, and Fig. 5 1llustrt-es :i further modification,

ln'tinning sheets, the latter one at a time are pushed down into 'the bath :md hy suit-- able guides are directed up between a pair l of il iven rollers '1. The tin is iimintiiinetl at or approximately at. a level a little below u {il-une passing; through the :n

rollers which are used te exert upon the l sheet el pressure proportional to the desired j lhieliness of the coating. The rollers l move the sheets up through a, body of oil on the molten tin und inta the bite of lying the autohifi@ rollers.

b As the oil has, u teinperuiure approximately equal to the inolin 1 tin, the coating' on the sheets is soft, thi'.A sheets leave the rollers 2, and hence the couting can he easily7 injured, and the movement f of the sheets from the rollers 2 until the f coating has become hard, must, be effected by means which will grip the sheets Wih suliieient irmness :is to insure the onward iiiovement *ithout indeniiug the coming.

My improve-d feeding; means consists of annularJ "or rings 3 inounteil on dri rollers :a external diameter thun the iilernal :.linin' rolls or rings, as el i and 3. if he roll;` the rings filo not; heur one the poinis of bearing o 4.

ainsi; the o'tiiei Specification of Letters Patent.

i rolls roulant Wirl. euch gpmximiltoly l axis oli inns.

, soml hm rings on the 'i V-"utented J lily 15513.

ria No. 702.775

lunes willi he in voiiicul pus iiirougli ih# :axes of the re` tive rollers il lf the rollers he moved tow ril ouch other so that' the riiws heur one against, The ot er or against im interposed sheet, the points of bearing a ol' the annuler rolls or rings oo the respeetive rollers will :nove luv-"ai, l .wirdvrzioli other. ltl the adjustment 'l roll `s 4 he xmitjinued sufiioientlv mi' ing points fr o the rings ou the r tivi? rollers will elrly f pproiicli u zrjiitul plne passing; through the fixeo rollers 'l'iie annuiur rolls muy be likened to n nondulunr tithe!) the rings are out of other or an ineriiw'mrd nl Lieri the point of henrinff' n ol enel: ring mi its rollers the ums or mid roller and4 renter u1" gravity of rho ring arc i The sume Yverri l lint us thi: voll orlier there u e g er the l ti from trl Alane passing 4 out in orujo ir 'pressure exerted posed sheet ol' rings he proiwrji -i^ is: rollers reluive to wel the i lieues; i. :annular rolls i with a sil.; to the il other.

nhserv en w i ii l:

imi hear mi the i 'ntf tlrz i ri with rtv-trie van mme 61; eerli ot er in accordance wir rh' vf rho sheets und that matie :idiustineut will not su 'chungo lie pressure oi' ille rinF..

sheets., wt.

vnrwv in gage tr vcell as lfm` itiiilirnillin ii, is preferred'tfo einploy u eerir of relative sli/irl a.' miler i euri enpzilile :rf i? ucle'fit mov iheizheul l1', will l he :nude of necessary it is also preferred that the sup,

porting and driven-rollers. should be ,made of a length approximately equal to that of the annular rolls or rings.

Any suitable means may be employed for maintaining the rings in proper alinement;

with the rollers. In the construction shown the rollers are peripherally grooved and the rings are provided in their inner peripheries with ribs 5 adapted to engage the grooves on the rollers, thus keeping the rings and rollers in alinement Without interfering with the pendulum movement of the rings.

As shown in Fig. 4 one of a pair of feed rolls may 1be made with its peripheral portionunyielding as shown at 6, the grip on' an interposed sheet being due to the action of the annular roll or ring. In lieu of supporting theannular roll or ring on a rollerf of a diameter approximating the internal diameter of the ring, such supporting member can be made substantially smaller than the internal diameter of the annular roll or ring.

Although it is probable that in most cases practical considerations require the rings to be rotated by frietional engagement with the supportingmember in order that the rings will not slip on the surface of the sheet being fed, the annular roll or ring may be positively driven by the supporting member, as shown in Fig. 5.

I claim herein as my invention:

l. ln a. feed mechanism, the combination of two opposed rotatable members, one consistingof a supporting-member and an annular roll or ring loosely surrounding and S0 pivotally resting on the supporting member as to have freedom of movement in a direction at an angle to the axis of the supporting member.

2. In a feed mechanism, the combination of opposed driven supporting members and annular rolls or rings having internal diameters greater than the external diameters of the. supporting members and'loosely hung on said members and free to swing in directions at an angle to the axes of the supportingV members.

3. In a feed mechanism, the combination of opposed annular rolls or rings and rotaltable members having a diameter less than the internal diametfs of the rings and adapted to bear against the internal peripheries of the rings at points aboxe the centers of gravity of the rings.

4. In a feed mechanism, the combination of two opposed feed members, and means' engaging one of said members eccentric to its axis5 and permitting free gravital movement of said member relative to the .other feed member,

ln testimony whereof l have hereunto set my hand.

SAMUEL E. DlESCHER. Witnesses:

G. G. TRILL, THOMAS B. JOYCE. 

